Advanced – Non-Functional Testing
ELK Stack – ISTQB Definition
Last Updated: July 12, 2026 · SoftwareTestPilot QA Team
Official ISTQB Definition
An open-source log analysis stack consisting of Elasticsearch, Logstash, and Kibana.
In simple words
A popular log collection, storage, and search stack.
Exam tip
ELK (now often OpenSearch-based) is the classic centralized logging solution.
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